Improvement in machines for cutting textile materials



2 Sheets--Sheet 1.

l A. WARTH. MACHINES FOR' CUTTINGTEXTILE MATERIALS.

Patented Sept. 19, 187,6.

NFERS. PHOTO-UTHOGRFHER, WASHINGTON, D C. V Y

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A. WARTII. MACHINES FOR CUTTING TEXTILE MATERIALS.

Patented Sept.'19,1876.

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No.18Z,498.

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N'PERS. FKDTD-.Ll-THUGRAPHER. WASHINGTON. D CY UNITED STATES PATENT OFFICE.

ALBIN WARTH, OF STAPLETON, NEW YORK.

IMPROVEMENT IN MACHINES FOR CUTTING TEXTILE MATERIALS.

Specication forming part of Letters Patent No. 182.498, dated September 19, 1876 application filed August 1e, 1876.

Vful lmprovementin Machines for Cutting Textile and Other Materials, which improvement is fully set forth in the following speciication, reference being had to the accompanying drawing, in which- Figure 1 represents a front View, partly in section. Figure 2 is a horizontal section of the cutter-head in the planewm, Fig. 1. Figs. 3 and 4 are elevations of the cutter-head from different sides.

Similar letters indicate corresponding parts.

This invention relates to certain improvements on that class of machines for cutting textile and other materials in which a rotating disk-knife is combinedv with a foot-plate and with a driving-gear, so that Iche foot-plate, together with the cutting mechanism, can be moved and turned in every direction without throwing the knife out of gear with the driving mechanism.

In machines of this class, as heretofore constructed, the requisite motion is imparted to the knife by gear-wheels, and in most machines of this class the shafts which carry these gear-wheels, and which have to make from eighteen hundred to two thousand revolutions per minute, are liable to run fast from time to time, and then the knife is jerked round, causing damage either to the goods to be cut or to the hands or limbs of the person attending to the machine.

These disadvantages I have overcome by my present improvements, which consist in the combination of a system of pulleys and belts with the rotating disk-knife and with the driving mechanism, so that when either of the several shafts runs fast the cutting mechanism remains stationary, and all damage is avoided. The knife is covered by a protector on both sides and iu front, so that the attendant is not liable to cut his fingers. With the knife are combined two grinding-disks, situated on opposite sides of said knife in oblique positions, and mounted on a shaft which receives a revolving motion, so that by the combined action of the two grinding-disks the cutting-edge of the knife is always kept in proper Working condition. The driving mechanism consists of a traveling carriage, which allows of moving the cutter-head in any direction with ease and facility. The knife and certain of the pulleys for imparting motion to the same are connected to one and the same sleeve, which is adjustable on a standard rising from the foot-plate, so that said pulleys preserve their proper relation when the knife is raised or lowered.

In the drawing. the letter A designates the table on which the material to be cutis placed. On this table are secured -brackets B, which support the guide-rails C of the carriage D.

In this carriage is secured a head, a, which swings on a pivot, b, and from which rises a pin, c, that forms the bearin g for a double puly ley, de, and for an arm, f, on which are mounted two pulleys, g g, and in one side of which are formed ratchetteeth, which engage with a pawl, h, pivoted to a bracket which extends from the head a. On the ends of the guide-rail C are secured standards E F, and

the standard F forms the bearing for a vertito bear against said belt, so as to increase its contact with the pulley d to any desired extent, and to cause said pulley to revolve, whatever the position of the carriage D may be. On the upper end of the pin c is mounted a swivel-arm, G, which connects by a rod, H, and arm I with the cutting mechanism. This cutting mechanism lconsists essentially of a foot-plate, K, from which risesa standard,

L, the upper portion of which formsa round pin, M, on which is secured a sleeve, N, which is secured in the desired position by a setscrew, m.. From this sleeve extends a hanger,

O, which forms the bearing for an arbor, n, on V which are mounted the disk-knife o and a pulley, p. The standard L is made in twol parts, between which the knife is placed, so that said knife is fully protected, and all danger that the attendant may cut his fingers iS avoided, and at the same time the material to be cut is prevented from crowding against the sides of the knife during the operation, of cutting. In the foot-plateK is a knife-receiving socket, q, with sharp edges, which cooperate with the knife, and serve to facilitate the operation of cutting. Frein the sleeve N extends a rod,r,in a horizontal direction, and on this rod are secured two brackets, s t, which form the bearings for the shafts u n, on each of which are mounted two pulleys, a b, respectively. A

The bracket t is mounted loosely on the rod r, and it is exposed to the action of a spring, c', which serves to keep the belt d taut. This belt extends from a pulley, e', round the pulleys b, and over the pulleys c', down to the pulley p on the arbor n of the knife o. Y

In the example shown in the drawings the pulley p is placed close to the knife; but it may be placed on the outer end of the knifeshaft, and in this case the belt d can be run down direct from the pulleys b', and the pulleys a can be dispensed with.

With the pulley e is firmly connected another pulley, f', and both these pulleys are mounted loosely on a tube, g', which ts over the pin M, rising from the standard L, and into an eye, h', formed at the outer end ofthe arm I. The pulley f connects by a belt, i', with the pulley e on the pin c, which rises from the head a on the carriage D.

s From the sleeve N extendsva bracket, j', through the outer end of which extends a vertical rod, c, on which is secured a yoke, l', which forms the bearings for a shaft, m. This shaft runs in a direction oblique to the arbor of the knife o, and on it are mounted two grinding-disks, n o', and a pulley, p. The grinding-disks are on opposite sides of the knife, and they receive a revolving motion by the action of the belt d against the pulley p'.

By employing two grinding-disks on opposite sides of the knife, the cutting-edge of said knife is automatically kept in the proper Working condition, and the necessity of stopping the operation of cutting for the purpose y of sharpening the knife is entirely avoided.

The yoke Z is adjusted in the required position by a slotted gage, s', which may be'secured adjustably thereto `by a set-screw, 1^', the end of this gage bearing against the sleeve N. By this means the grinding-disks can be set so as to act on the knife to the best possible advantage.

- A handle, W, attached to the standard L, serves to guide the cutting mechanism. y

From this description it will be seen that the pulleys e' f revolve loosely on a tube, which lits over the pin M, rising from the standard L of the cutting mechanism; and in case the pulleys should run hot and fast on said tube, the tube will revolve on the pin M, and the cutting mechanism is not liable to be jerked round violently.

Furthermore, by using belts instead of cog- Wheels for transmitting motion to the diskknife o a steady motion is obtained, and the u danger is avoided that the motion of the knife shall be stopped by threads or other impurities catching in the cog-wheels; and, by combinin g with the rotating disk-knife and its attachments the belt lo and carriage D, said knife can be moved in any desired direction over the table A, and a rotating knife can be employed for cutting out patterns' for garments or other articles with the same, or nearly the same, advantage as a reciprocating knife.

By means of the peculiar arrangement of the carriage D, the cutting mechanism can be pushed backward or forward, and in some cases the carriage moves either in one or in the opposite direction, without disturbing the movement of the knife.

It will also be noticed that the sleeve N supports all the pulleys p a b and vthe knife o, so thatvwhen the cutting mechanism is turned round, the pulleys preserve theirV proper relation toward each other and toward the pulley e', land when the knife has tof be raised or lowered the driving-gear is not' disturbed.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for cutting textile and other` materials, the combination of a pulley, e, swivel-arm G H I, belt i', pulleysf e', belt d',

pulleys b p, disk-knife o, and foot-plate K,. with its standard L, all constructed and oper ating substantially in the manner shown land described.

2. The combination, with the pulleys ef,

standard L M, and disk-knife 0, of a tube, g',

fitting loosely over the pin M and into the pulleys e f', substantially as and for the purposes set forth.

K, all constructed and operating substantially as and for the purpose shown and described.

4. The protector L, enveloping the diskknife 0 except at the grinding and cloth-cut. ting points, substantially as and for the pur-V pose set forth.

5. rIhe grinding-disks n' o', arranged on opposite sides of the disk-knife o, and mounted on a shaft running in a direction oblique to. that of the knife-arbor, substantially as set forth.

'6. The combination, with the sleeve N, standard L M, disk-knife o, and foot-plate K, of a hanger, O, which forms the bearing for the knife-shaft, and of a rod, r, which supports; pulleys b', substantially as and for the pur-y pose set forth.

In testimony that I claim the foregoing I- have hereunto set my hand and seal this 16th,?y

day of August, 1876.

ALBIN WARTH. [1.. s] Witnesses:

W. HAUFF,

E. F. KAsTENHUBER.' 

